MVS/TSO Kermit
 
Historically, there have been several different Kermit programs for TSO,
largely due to the fact that CUCCA has not used TSO and has, therefore,
never been in a good position to give centralized direction to the
development or support of TSO Kermit.  On several occasions, a TSO Kermit
program was devised just to add support for one new feature which was, at
the time, unavailable in existing Kermits.  The situation was simplified
considerably when the main features of the existing TSO Kermit programs
were incorporated into TSO Kermit-370, and some programs could be (and
were) retired from the Kermit distribution.
 
The most advanced TSO Kermit is, in fact, the TSO variant of Kermit-370,
a generic 370 version of Kermit which supports all styles of front ends
capable of carrying Kermit file transfer and which runs on several
IBM/370-compatible operating systems.  The files for TSO Kermit-370 have
names beginning with IKT and IK0 (I K Zero), the latter group being
shared with the other variants.
 
TSOKER was basically the original IBM VM/CMS Kermit written at Columbia,
adapted at the University of Chicago to run under MVS/TSO through line-
mode connections (3705 asynchronous ASCII ports) only.
 
TSOS1 was TSOKER adapted at the University of Toronto to run through
Series/1-style front ends only.  These front ends run the Yale IUP, and
do 3270 full-screen protocol conversion.
 
TS3KER was TSOKER modifed to run through the 3708 front end under VTAM in
line mode.
 
TSNKER is an outgrowth of TSOKER, largely rewritten and converted from
assembler to ALP at NIH, with many more features and capabilities than
TSOKER.  However, it currently supports only line-mode connections.
 
TS2KER is the CMS Pascal/VS Kermit CM2KER adapted to TSO.
 
Other TSO Kermit programs were never included in the distribution.
